Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Portents, Comets
ग्रहचारः केतवश्च
याम्यगोऽनिष्टफलदो भवेद्भेदकरो नृणाम् ।विनोत्पातेन शशिनः कदाचिन्नोदयं व्रजेत् ॥ ३८ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 38.
Going south, it gives bad results and splits people. The son of the Moon never rises without an utpata (strange omen in nature).
Simple meaning: Mars going south gives bad results. Mercury never rises without some strange omen.
अनावृष्ट्यग्निभयकृदनर्थनृपविग्रहः ।
Mercury's rising can bring drought, fire fear and war between kings.
भिनत्ति यदि तत्तारां बाधावृष्टिभयंकरः ।
Mercury splitting those stars brings trouble and fear of drought.
तदा दुर्भिक्षकलहरोगानावृष्टिभीतिकृत् ।
Mercury in the stars from Ardra to Magha brings famine, quarrels, illness and drought.